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-rw-r--r--tests/validation/reference/Gather.cpp53
1 files changed, 41 insertions, 12 deletions
diff --git a/tests/validation/reference/Gather.cpp b/tests/validation/reference/Gather.cpp
index 93ac09cf95..c90c04f8cc 100644
--- a/tests/validation/reference/Gather.cpp
+++ b/tests/validation/reference/Gather.cpp
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018-2019 Arm Limited.
+ * Copyright (c) 2018-2019, 2022-2023 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
@@ -39,27 +39,56 @@ namespace reference
template <typename T>
SimpleTensor<T> gather(const SimpleTensor<T> &src, const SimpleTensor<uint32_t> &indices, uint32_t actual_axis)
{
- const auto *indices_ptr = static_cast<const uint32_t *>(indices.data());
const TensorShape dst_shape = arm_compute::misc::shape_calculator::compute_gather_shape(src.shape(), indices.shape(), actual_axis);
SimpleTensor<T> dst(dst_shape, src.data_type());
+ const auto src_ptr = static_cast<const T *>(src.data());
+ const auto indices_ptr = static_cast<const uint32_t *>(indices.data());
+ const auto dst_ptr = static_cast<T *>(dst.data());
+
+ const uint32_t index_limit = src.shape()[actual_axis];
+
Window win;
win.use_tensor_dimensions(dst_shape);
- execute_window_loop(win, [&](const Coordinates & id)
- {
- Coordinates offset;
- for(unsigned int dim = 0; dim < id.num_dimensions(); ++dim)
+
+ execute_window_loop(win, [&](const Coordinates &dst_coords) {
+ const auto dst_addr = coords2index(dst.shape(), dst_coords);
+
+ // Calculate the coordinates of the index value.
+ Coordinates idx_coords;
+
+ for(size_t i = 0; i < indices.shape().num_dimensions(); ++i)
{
- if(dim == actual_axis)
+ idx_coords.set(i, dst_coords[i + actual_axis]);
+ }
+
+ const auto index = indices_ptr[coords2index(indices.shape(), idx_coords)];
+
+ if(index < index_limit)
+ {
+ // Calculate the coordinates of the source data.
+ Coordinates src_coords;
+
+ for(size_t i = 0; i < actual_axis; ++i)
{
- offset.set(dim, indices_ptr[id[dim]]);
+ src_coords.set(i, dst_coords[i]);
}
- else
+
+ src_coords.set(actual_axis, index);
+
+ for(size_t i = actual_axis + 1; i < src.shape().num_dimensions(); ++i)
{
- offset.set(dim, id[dim]);
+ src_coords.set(i, dst_coords[i + indices.shape().num_dimensions() - 1]);
}
+
+ // Copy the data.
+ const auto src_addr = coords2index(src.shape(), src_coords);
+ dst_ptr[dst_addr] = src_ptr[src_addr];
+ }
+ else
+ {
+ dst_ptr[dst_addr] = 0;
}
- *reinterpret_cast<T *>(dst(id)) = *reinterpret_cast<const T *>(src(offset));
});
return dst;
@@ -72,4 +101,4 @@ template SimpleTensor<uint8_t> gather(const SimpleTensor<uint8_t> &src, const Si
} // namespace reference
} // namespace validation
} // namespace test
-} // namespace arm_compute \ No newline at end of file
+} // namespace arm_compute